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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| — |
| — |
| 0 |
| AS20301US | AS20301 - National Aeronautics and Space Administration | — | — | 0 |
| AS22053US | ARENAONE - Arena One, LLC | — | — | 0 |
| AS19947US | VINS-AS-2 - Flexential Colorado Corp. | — | — | 0 |
| AS19897US | IQNT-BROAD-6-19897 - Inteliquent, inc. | — | — | 0 |
| AS19459US | SMSU-12-19459 - Siemens Medical Solutions USA, Inc. | — | — | 0 |
| AS3046US | RICE-AS3046 - Rice University | — | — | 0 |
| AS2965US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2935US | CDOLNET-GOV - Connecticut Department of Labor | — | — | 0 |
| AS2733US | ADDREX - Addrex, Inc | — | — | 0 |
| AS20155US | OCO-1 - ORANGE COUNTY ONLINE | — | — | 0 |
| AS1868US | DISN-PILOTNET14 - RTX BBN Technologies, Inc. | — | — | 0 |
| AS1728US | SRI-TPA-GW1 - SRI-TPA-gw1 | — | — | 0 |
| AS4102US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4112US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS3994US | INET-CORE-AS - Internetworsks, Inc. | — | — | 0 |
| AS3956US | TX-METRO - Texas Metronet | — | — | 0 |
| AS3761US | UTOPIA-FIBER-IT - UTOPIA | — | — | 0 |
| AS4031US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS26103US | ACIG - ACIG | — | — | 0 |
| AS11675US | MCPS-MECKLENBURG-COUNTY-PUBLIC-SCHOOLS - Mecklenburg County Public Schools | — | — | 0 |
| AS11518US | ROBBINSMORTON - Robins & Morton, L.L.C. | — | — | 0 |
| AS11344US | YOUTUBE - YouTube, LLC | — | — | 0 |
| AS11368US | GOLDENSTATEIX - San Francisco Metropolitan Internet Exchange (SFMIX) | — | — | 0 |
| AS10994US | TWC-10994-NA - Charter Communications Inc | — | — | 0 |
| AS10948US | INTERNET - Voya Investment Management LLC | — | — | 0 |
| AS10822US | UNISTAR - Unistar Entertainment, Inc | — | — | 0 |
| AS10636US | CG-FS-AS1 - Cap Gemini America, Inc. | — | — | 0 |
| AS27048US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27040US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS26719US | AI-18-26719 - Otava, LLC | — | — | 0 |
| AS26834US | ROSE-WEB-SERVICES - Rose Web Services LLC | — | — | 0 |
| AS16828US | DGA-SECURITY - DGA Security Systems, Inc. | — | — | 0 |
| AS401058US | ALZ - The Vanguard Group, Inc. | — | — | 0 |
| AS23519US | NGISCORV - Alyrica Networks Inc. | — | — | 0 |
| AS10740US | OWO-AS - Origin Systems, INC. | — | — | 0 |
| AS30314US | KAN-ED - Kansas Research and Education Network | — | — | 0 |
| AS30297US | APPLI-54 - Application X | — | — | 0 |
| AS30106US | ANCOR - Ancor Information Management | — | — | 0 |
| AS30266US | RF-SJC-DATACENTER - Rodan & Fields LLC | — | — | 0 |
| AS29845US | DAVISMALM-ASN - Davis Malm & D'Agostine P.C. | — | — | 0 |
| AS27092US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27538US | NOBLEENERGY-ASN2 - Chevron Corporation | — | — | 0 |
| AS29929US | CHADDESK-NET-V1 - ChadDesk LLC | — | — | 0 |
| AS27095US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS29740US | SSI-BGP4 - Schaefer Systems International, Inc. | — | — | 0 |
| AS19227US | OK-INTERNET - Terra World, Inc. | — | — | 0 |